/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package servlet;

import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.HashMap;
import java.util.Map;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.annotation.Resource;
import javax.faces.context.FacesContext;
import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.sql.DataSource;
import net.sf.jasperreports.engine.JRException;
import net.sf.jasperreports.engine.JRResultSetDataSource;
import net.sf.jasperreports.engine.JasperRunManager;

/**
 *
 * @author Toshiba
 */
@WebServlet(name="purchaseOrderServlet", urlPatterns={"/purchaseOrderServlet","/purchaseOrderServlet?*"})
public class purchaseOrderServlet extends HttpServlet{
    @Resource(name = "jasperjdbc")
    private DataSource jasperjdbc;
    private Long selectedPrintPurchaseOrderID;

    /** 
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException, SQLException, JRException {
     System.out.println("PROCESS REQUEST IN SERVLET");
        try {
            
            selectedPrintPurchaseOrderID = (Long)request.getSession(true).getAttribute("selectedPrintPOID");
            String pI = String.valueOf(selectedPrintPurchaseOrderID) ;
            System.out.print("purchaseOrderId: " + pI);
            String strSQL = "SELECT PO.ID POID, B.BILLINGCITY, B.BILLINGSTATE, B.BILLINGSTREET, B.BILLINGCODE, B.BILLINGCOUNTRY, CT.COMPANYNAME,CT.FAXNUM, CT.MOBILENUM,"
                    + " PO.DUEDATE, SD.DATEISSUED, L.ITEMID, L.ITEMNAME, L.PRICE, L.QUANTITY, L.TOTALLINEPRICE"
                    + " FROM PURCHASEORDERENTITY PO"
                    + " INNER JOIN SALESDOCUMENTENTITY SD ON PO.ID = SD.ID"
                    + " INNER JOIN CLIENTENTITY C ON SD.CLIENT_ID = C.ID"
                    + " INNER JOIN CONTACTENTITY CT ON CT.ID = SD.CONTACT_ID "
                    + " INNER JOIN BILLINGADDRESSENTITY B ON SD.BILLINGADDRESS_ID = B.ID"
                    + " INNER JOIN SALESDOCUMENTENTITY_LINEENTRYENTITY SL ON SD.ID = SL.SALESDOCUMENTENTITY_ID"
                    + " INNER JOIN LINEENTRYENTITY L ON SL.LINEENTRYLIST_ID = L.ID"
                    + " WHERE PO.ID = " + pI;
            System.out.print("strSQL: " + strSQL);
            ResultSet rsEvents = jasperjdbc.getConnection().prepareStatement(strSQL).executeQuery();
            JRResultSetDataSource jrResultSetDataSource = new JRResultSetDataSource(rsEvents);
            InputStream reportStream = (InputStream) getServletConfig().getServletContext().getResourceAsStream("/report/purchaseOrder.jasper");
            System.out.print("Servlet");

            response.setContentType("application/pdf");
            ServletOutputStream outputStream = response.getOutputStream();
            System.out.print("REACHED SERVLET");
            HashMap parameters = new HashMap();

            JasperRunManager.runReportToPdfStream(reportStream, outputStream, new HashMap(), jrResultSetDataSource);
            System.out.print("Servlet2");
            outputStream.flush();
            outputStream.close();
        } finally {            
//            out.close();
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** 
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        try {
            processRequest(request, response);
        } catch (SQLException ex) {
            Logger.getLogger(purchaseOrderServlet.class.getName()).log(Level.SEVERE, null, ex);
        } catch (JRException ex) {
            Logger.getLogger(purchaseOrderServlet.class.getName()).log(Level.SEVERE, null, ex);
        }
    }

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        try {
            processRequest(request, response);
        } catch (SQLException ex) {
            Logger.getLogger(purchaseOrderServlet.class.getName()).log(Level.SEVERE, null, ex);
        } catch (JRException ex) {
            Logger.getLogger(purchaseOrderServlet.class.getName()).log(Level.SEVERE, null, ex);
        }
    }

    /** 
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
